7 files changed, 11 insertions, 11 deletions
diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h
index dd7b35e2bb..fa8e4dac93 100644
--- a/src/gui/kernel/qevent.h
+++ b/src/gui/kernel/qevent.h
@@ -699,7 +699,7 @@ class Q_GUI_EXPORT QActionEvent : public QEvent
 {
     QAction *act, *bef;
 public:
-    QActionEvent(int type, QAction *action, QAction *before = 0);
+    QActionEvent(int type, QAction *action, QAction *before = Q_NULLPTR);
     ~QActionEvent();
 
     inline QAction *action() const { return act; }
@@ -876,7 +876,7 @@ public:
 #endif
 
     explicit QTouchEvent(QEvent::Type eventType,
-                         QTouchDevice *device = 0,
+                         QTouchDevice *device = Q_NULLPTR,
                          Qt::KeyboardModifiers modifiers = Qt::NoModifier,
                          Qt::TouchPointStates touchPointStates = 0,
                          const QList<QTouchEvent::TouchPoint> &touchPoints = QList<QTouchEvent::TouchPoint>());
diff --git a/src/gui/kernel/qgenericplugin.h b/src/gui/kernel/qgenericplugin.h
index cfab34d081..03c1df7fba 100644
--- a/src/gui/kernel/qgenericplugin.h
+++ b/src/gui/kernel/qgenericplugin.h
@@ -48,7 +48,7 @@ class Q_GUI_EXPORT QGenericPlugin : public QObject
 {
     Q_OBJECT
 public:
-    explicit QGenericPlugin(QObject *parent = 0);
+    explicit QGenericPlugin(QObject *parent = Q_NULLPTR);
     ~QGenericPlugin();
 
     virtual QObject* create(const QString& name, const QString &spec) = 0;
diff --git a/src/gui/kernel/qoffscreensurface.h b/src/gui/kernel/qoffscreensurface.h
index 909a1ef256..17bc8a7d17 100644
--- a/src/gui/kernel/qoffscreensurface.h
+++ b/src/gui/kernel/qoffscreensurface.h
@@ -51,7 +51,7 @@ class Q_GUI_EXPORT QOffscreenSurface : public QObject, public QSurface
 
 public:
 
-    explicit QOffscreenSurface(QScreen *screen = 0);
+    explicit QOffscreenSurface(QScreen *screen = Q_NULLPTR);
     virtual ~QOffscreenSurface();
 
     SurfaceType surfaceType() const Q_DECL_OVERRIDE;
diff --git a/src/gui/kernel/qopenglcontext.h b/src/gui/kernel/qopenglcontext.h
index 89c24b66bf..d5bbd3358a 100644
--- a/src/gui/kernel/qopenglcontext.h
+++ b/src/gui/kernel/qopenglcontext.h
@@ -143,7 +143,7 @@ class Q_GUI_EXPORT QOpenGLContext : public QObject
     Q_OBJECT
     Q_DECLARE_PRIVATE(QOpenGLContext)
 public:
-    explicit QOpenGLContext(QObject *parent = 0);
+    explicit QOpenGLContext(QObject *parent = Q_NULLPTR);
     ~QOpenGLContext();
 
     void setFormat(const QSurfaceFormat &format);
diff --git a/src/gui/kernel/qopenglwindow.h b/src/gui/kernel/qopenglwindow.h
index f274275c3f..0c2b44c1c7 100644
--- a/src/gui/kernel/qopenglwindow.h
+++ b/src/gui/kernel/qopenglwindow.h
@@ -58,8 +58,8 @@ public:
         PartialUpdateBlend
     };
 
-    explicit QOpenGLWindow(UpdateBehavior updateBehavior = NoPartialUpdate, QWindow *parent = 0);
-    explicit QOpenGLWindow(QOpenGLContext *shareContext, UpdateBehavior updateBehavior = NoPartialUpdate, QWindow *parent = 0);
+    explicit QOpenGLWindow(UpdateBehavior updateBehavior = NoPartialUpdate, QWindow *parent = Q_NULLPTR);
+    explicit QOpenGLWindow(QOpenGLContext *shareContext, UpdateBehavior updateBehavior = NoPartialUpdate, QWindow *parent = Q_NULLPTR);
     ~QOpenGLWindow();
 
     UpdateBehavior updateBehavior() const;
diff --git a/src/gui/kernel/qrasterwindow.h b/src/gui/kernel/qrasterwindow.h
index 4912efad37..6db6baa8f5 100644
--- a/src/gui/kernel/qrasterwindow.h
+++ b/src/gui/kernel/qrasterwindow.h
@@ -46,7 +46,7 @@ class Q_GUI_EXPORT QRasterWindow : public QPaintDeviceWindow
     Q_DECLARE_PRIVATE(QRasterWindow)
 
 public:
-    explicit QRasterWindow(QWindow *parent = 0);
+    explicit QRasterWindow(QWindow *parent = Q_NULLPTR);
 
 protected:
     int metric(PaintDeviceMetric metric) const Q_DECL_OVERRIDE;
diff --git a/src/gui/kernel/qwindow.h b/src/gui/kernel/qwindow.h
index 67585ce963..b29e7aaae7 100644
--- a/src/gui/kernel/qwindow.h
+++ b/src/gui/kernel/qwindow.h
@@ -125,7 +125,7 @@ public:
     };
     Q_ENUM(Visibility)
 
-    explicit QWindow(QScreen *screen = 0);
+    explicit QWindow(QScreen *screen = Q_NULLPTR);
     explicit QWindow(QWindow *parent);
     virtual ~QWindow();
 
@@ -360,12 +360,12 @@ private:
 #ifndef Q_QDOC
 template <> inline QWindow *qobject_cast<QWindow*>(QObject *o)
 {
-    if (!o || !o->isWindowType()) return 0;
+    if (!o || !o->isWindowType()) return Q_NULLPTR;
     return static_cast<QWindow*>(o);
 }
 template <> inline const QWindow *qobject_cast<const QWindow*>(const QObject *o)
 {
-    if (!o || !o->isWindowType()) return 0;
+    if (!o || !o->isWindowType()) return Q_NULLPTR;
     return static_cast<const QWindow*>(o);
 }
 #endif // !Q_QDOC